ClassID:

135671

E21B44/06 - CPC Classification

Classification description:

Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems ; Systems specially adapted for monitoring a plurality of drilling variables or conditions; Automatic control of the tool feed in response to the flow or pressure of the motive fluid of the drive

Recent Application in this class:
#1
20260153024
2026-06-04

System and Method for Mud Motor Stall Detection and Recovery

#2
20260103974
2026-04-16

METHODS, SYSTEMS, AND MEDIA FOR CONTROLLING A TOOLFACE OF A DOWNHOLE TOOL

#3
20260071507
2026-03-12

AUTOMATIC COILED TUBING INJECTOR CHAIN MANAGEMENT SYSTEM

#4
20250361805
2025-11-27

Method to Alter the Process of Cuttings Bed Formation in a Wellbore

#5
20250314162
2025-10-09

Non-fracturing Restimulation of Unconventional Hydrocarbon Containing Formations to Enhance Production

#6
20250305404
2025-10-02

APPARATUS AND METHODS FOR CONTROLLING DRILLING

#7
20250283395
2025-09-11

ALLOCATING FLUID FLOW BY CONTROLLING INTELLIGENT COMPLETION VALVES IN A HYDROCARBON WELL USING MACHINE LEARNING

#8
20250243744
2025-07-31

AUTOMATED WORKFLOWS USING TRANSIENT, MULTIPHASE ANALYSIS TO IMPROVE WELL CONTROL PLANNING FOR MANAGED PRESSURE DRILLING OPERATIONS

#9
20250230743
2025-07-17

ADAPTIVE QUALITY CONTROL FOR MONITORING WELLBORE DRILLING

#10
20250146372
2025-05-08

Evaluation and Control of Influx Circulation During Managed Pressure Drilling Operations

#11
20250109677
2025-04-03

APPARATUS AND METHODS FOR UNINTERRUPTED DRILLING

#12
20250003330
2025-01-02

HYDRAULICS MODEL UTILIZATION IN WELL OPERATIONS

#13
20240410357
2024-12-12

METHOD FOR CONTROLLING A COMPRESSOR WHICH PROVIDES THE DRIVE OF A PNEUMATIC TOOL

#14
20240392676
2024-11-28

SYSTEMS AND METHODS FOR AUTOMATIC OPERATIONAL CONTROL

#15
20240352811
2024-10-24

AUTOMATED REEL TENSION CONTROL SYSTEMS AND PROCESSES

#16
20240344443
2024-10-17

APPARATUS AND METHODS FOR ELECTRIC POWER MANAGEMENT

#17
20240271511
2024-08-15

Non-fracturing restimulation of unconventional hydrocarbon containing formations to enhance production

#18
20240271488
2024-08-15

ARRANGEMENT AND METHOD FOR HEATING HYDRAULIC IMPACT DEVICE

#19
20240263553
2024-08-08

SYSTEM AND METHOD TO DETERMINE AND CONTROL WELLBORE STABILITY

#20
20240218779
2024-07-04

Autonomous Start Of Pump-Down Operation

#21
20240191612
2024-06-13

Intelligent drilling system with external stationary sensing shield

#22
20240183265
2024-06-06

WORKFLOW TO DIRECTLY RELATE RATE OF PENETRATION (ROP) TO HOLE CLEANING BASED ON REAL-TIME DENSITY AND RHEOLOGY OF DRILLING FLUIDS

#23
20240159139
2024-05-16

Internet of things in managed pressure drilling operations

#24
20240159138
2024-05-16

METHODS, SYSTEMS, AND COMPUTER-READABLE MEDIA FOR PERFORMING AUTOMATED DRILLING OF A WELLBORE

#25
20240133287
2024-04-25

DEVICES, SYSTEMS, AND METHODS FOR MITIGATING DOWNHOLE MOTOR DYSFUNCTION

#26
20240133286
2024-04-25

APPARATUS AND METHODS FOR CONTROLLING DRILLING

#27
20240110444
2024-04-04

Rotary steerable drilling assembly and method

#28
20240011387
2024-01-11

Arrangement of controlling drilling parameters during extraction of a drill string

#29
20230417135
2023-12-28

Apparatus and methods for uninterrupted drilling

#30
20230417134
2023-12-28

METHODS, SYSTEMS, AND MEDIA FOR CONTROLLING A TOOLFACE OF A DOWNHOLE TOOL

#31
20230407738
2023-12-21

SYSTEM AND METHOD OF AUTOMATING THE ALTERATION OF DRILLING PARAMETERS OR AN AUTOMATION CONFIGURATION

#32
20230399937
2023-12-14

Controlling operating parameters of a surface drilling rig to optimize bottom-hole assembly (“BHA”) drilling performance

#33
20230396589
2023-12-07

SECURITY SYSTEM AND METHOD FOR PRESSURE CONTROL EQUIPMENT

#34
20230392497
2023-12-07

Automated filtering and normalization of logging data for improved drilling performance

#35
20230349283
2023-11-02

Automated systems and methods for controlling the operation of downhole-adjustable motors

#36
20230272683
2023-08-31

Managed Pressure Drilling Manifold and Methods

#37
20230228182
2023-07-20

REAL-TIME EVAL OPTIMIZES DRILLING OPERATIONS EFFICIENCY

#38
20230203935
2023-06-29

Method for real-time pad force estimation in rotary steerable system

#39
20230193742
2023-06-22

Internet of things in managed pressure drilling operations

#40
20230184052
2023-06-15

Pump Out Plug Barrier

#41
20230175383
2023-06-08

SYSTEM AND METHOD FOR AUTOMATED IDENTIFICATION OF MUD MOTOR DRILLING MODE

#42
20230175333
2023-06-08

Setting tool for a subterranean adaptive support delivery tool with actuating piston speed regulation feature

#43
20230124372
2023-04-20

Rope tensioning system for drilling rig

#44
20230110623
2023-04-13

Reel control in a coiled tubing system

#45
20230097426
2023-03-30

METHOD AND SYSTEM FOR MACHINE LEARNING AND PREDICTIVE ANALYTICS OF FRACTURE DRIVEN INTERACTIONS

#46
20230023709
2023-01-26

Apparatus and methods for controlling drilling

#47
20230021387
2023-01-26

Methods, systems, and computer-readable media for performing automated drilling of a wellbore

#48
20220403730
2022-12-22

Controlling operating parameters of a surface drilling rig to optimize bottom-hole assembly (“BHA”) drilling performance

#49
20220364458
2022-11-17

Methods, systems, and media for controlling a toolface of a downhole tool

#50
20220364457
2022-11-17

Apparatus and methods for uninterrupted drilling

#51
20220364456
2022-11-17

Method and apparatus for identifying a potential problem with a bottom hole assembly (BHA) combination using a feedback control loop system

#52
20220356950
2022-11-10

ROTATING SEAT ASSEMBLY

#53
20220349260
2022-11-03

Method and apparatus for controlling a rotary steerable system using closed-loop system(s)

#54
20220290514
2022-09-15

Automatic Coiled Tubing Injector Chain Management System

#55
20220228476
2022-07-21

Adaptive quality control for monitoring wellbore drilling

#56
20220170361
2022-06-02

RISK ASSESSMENT-BASED DESIGN METHOD FOR DEEP COMPLEX FORMATION WELLBORE STRUCTURE

#57
20220154571
2022-05-19

Methods, systems, and computer-readable media for performing automated drilling of a wellbore

#58
20220137568
2022-05-05

PREDICTIVE MODELS AND MULTI-OBJECTIVE CONSTRAINT OPTIMIZATION ALGORITHM TO OPTIMIZE DRILLING PARAMETERS OF A WELLBORE

#59
20220127923
2022-04-28

Controlling release of torsional energy from a drill string

#60
20220098968
2022-03-31

Method and apparatus for identifying a potential problem with drilling equipment using a feedback control loop system

#61
20220010667
2022-01-13

Setting a wellbore casing in a salt formation

#62
20220010625
2022-01-13

Rotary steerable drilling assembly and method

#63
20210388677
2021-12-16

Method and System for Directional Drilling

#64
20210381882
2021-12-09

Performance index using frequency or frequency-time domain

#65
20210381341
2021-12-09

Predictive pressure protection system

#66
20210372263
2021-12-02

Method and system of drilling with geologically-driven rate of penetration

#67
20210324727
2021-10-21

Well construction management and decision support system

#68
20210310321
2021-10-07

Managed pressure drilling systems and methods

#69
20210301640
2021-09-30

Methods of drilling using mixed proportional integral derivative control

#70
20210207468
2021-07-08

Process automation optimizes the process of placing a drill bit on the bottom of the wellbore

#71
20210198988
2021-07-01

Autonomous optimization of single-well and multi-well gas lift

#72
20210172284
2021-06-10

Managed pressure drilling manifold and methods

#73
20210148216
2021-05-20

Downhole dynamometer

#74
20210140300
2021-05-13

Automated real-time transport ratio calculation

#75
20210108503
2021-04-15

Methods, systems and media for controlling a toolface of a downhole tool

#76
20210105253
2021-04-08

Security system and method for pressure control equipment

#77
20210087918
2021-03-25

Active control method and control device for wellbore pressure in the open-cycle drilling of marine natural gas hydrates

#78
20210079752
2021-03-18

Machine Learning Control for Automatic Kick Detection and Blowout Prevention

#79
20210047910
2021-02-18

LEARNING BASED BAYESIAN OPTIMIZATION FOR OPTIMIZING CONTROLLABLE DRILLING PARAMETERS

#80
20210040836
2021-02-11

Lubrication system for a plunger/packing set of a fluid end

#81
20210017850
2021-01-21

Apparatus and methods for uninterrupted drilling

#82
20210017842
2021-01-21

Non-fracturing restimulation of unconventional hydrocarbon containing formations to enhance production

#83
20200378248
2020-12-03

Automated filtering and normalization of logging data for improved drilling performance

#84
20200370381
2020-11-26

Automated drilling advisory and control system

#85
20200362695
2020-11-19

Real-time equivalent circulating density of drilling fluid

#86
20200355059
2020-11-12

Robust early kick detection using real time drilling

#87
20200325741
2020-10-15

Systems, methods, and computer-readable media to monitor and control well site drill cuttings transport

#88
20200318464
2020-10-08

AUTOMATED SYSTEM AND METHOD FOR USE IN WELL CONTROL

#89
20200308918
2020-10-01

System and method for calibration of hydraulic models by surface string weight

#90
20200291764
2020-09-17

System and method for drilling a wellbore using pattern detection

#91
20200277849
2020-09-03

Characterizing responses in a drilling system

#92
20200248508
2020-08-06

Method and system for directional drilling

#93
20200208512
2020-07-02

Digital signal processing in mud pulse telemetry

#94
20200190961
2020-06-18

Earth-boring systems and methods for controlling earth-boring systems

#95
20200165887
2020-05-28

GRADED PRESSURE DROP TYPE MULTI STAGE WATER INJECTION DEVICE AND METHOD BASED ON FRACTURE OBSERVATION

#96
20200096116
2020-03-26

Rotating seat assembly

#97
20200080412
2020-03-12

METHOD AND SYSTEM FOR OPERATING A DRILLING PLANT

#98
20200063546
2020-02-27

Apparatus and methods for uninterrupted drilling

#99
20200056471
2020-02-20

SYSTEMS AND METHODS OF CONDUCTING SUBTERRANEAN DRILLING OPERATIONS

#100
20190368961
2019-12-05

Method for the calibration of a top drive and top drive for a drill string

#101
20190353012
2019-11-21

Drilling trouble prediction using stand-pipe-pressure real-time estimation

#102
20190323335
2019-10-24

Downhole motor stall detection

#103
20190316457
2019-10-17

Systems and methods for optimizing rate of penetration in drilling operations

#104
20190292898
2019-09-26

Model-based parameter estimation for directional drilling in wellbore operations

#105
20190284923
2019-09-19

Systems and methods for estimating drill bit rotational velocity using top drive torque and rotational velocity

#106
20190242248
2019-08-08

Hydraulic positioning control for downhole tools

#107
20190145178
2019-05-16

Underreamer for increasing a wellbore diameter

#108
20190106982
2019-04-11

Adaptive quality control for monitoring wellbore drilling

#109
20190078428
2019-03-14

Automated optimization of downhole tools during underreaming while drilling operations

#110
20190032461
2019-01-31

Non-fracturing restimulation of unconventional hydrocarbon containing formations to enhance production

#111
20180238164
2018-08-23

Enhancing drilling operations with cognitive computing

#112
20180179884
2018-06-28

System and method for determining drilling parameters based on hydraulic pressure associated with a directional drilling system

#113
20180163528
2018-06-14

WELL SENSING AND CONTROL SYSTEM AND METHOD

#114
20180135402
2018-05-17

System and method for mitigating a mud motor stall

#115
20180128088
2018-05-10

Method for inverting oil continuous flow to water continuous flow

#116
20180119537
2018-05-03

Autodrilling control with annulus pressure modification of differential pressure

#117
20180099366
2018-04-12

PNEUMATIC DRILLING DEVICE

#118
20170370167
2017-12-28

MUD-GAS SEPARATOR APPARATUS AND METHODS

#119
20170342808
2017-11-30

Method to optimize oilfield operations based on large and complex data sets

#120
20170328193
2017-11-16

Method, system, and medium for controlling rate of penetration of a drill bit

#121
20170321687
2017-11-09

Linear hydraulic pump and its application in well pressure control

#122
20170306702
2017-10-26

Method and system for directional drilling

#123
20170260822
2017-09-14

Methods and systems for drilling

#124
20170234125
2017-08-17

Devices and methods for digital signal processing in mud pulse telemetry

#125
20170211370
2017-07-27

METHOD AND SYSTEM FOR TRANSMITTING INFORMATION IN A JET DRILLING SYSTEM

#126
20170198865
2017-07-13

Pipeline system

#127
20170191359
2017-07-06

Employing a target risk attribute predictor while drilling

#128
20170122092
2017-05-04

CHARACTERIZING RESPONSES IN A DRILLING SYSTEM

#129
20170101824
2017-04-13

Underreamer for increasing a wellbore diameter

#130
20170058658
2017-03-02

Methods of controlling drill bit trajectory by predicting bit walk and wellbore spiraling

#131
20170037691
2017-02-09

Drilling system and method of operating a drilling system

#132
20160305231
2016-10-20

System and Method for Drilling using Pore Pressure

#133
20160290117
2016-10-06

Controlling a bottom hole assembly in a wellbore

#134
20160265292
2016-09-15

Torque control device for a downhole drilling assembly

#135
20160251946
2016-09-01

Method and system for optimizing well production

#136
20160245048
2016-08-25

Systems and methods for optimizing drilling operations using transient cuttings modeling and real-time data

#137
20160230530
2016-08-11

Drilling automation using stochastic optimal control

#138
20160145992
2016-05-26

Continuous downlinking while drilling

#139
20160115776
2016-04-28

METHOD AND SYSTEM TO DRILL OUT WELL COMPLETION PLUGS

#140
20150354336
2015-12-10

CONTROL PARAMETER DETERMINATION IN STEAM ASSISTED GRAVITY DRAINAGE OIL DRILLING

#141
20150330204
2015-11-19

Well construction management and decision support system

#142
20150247399
2015-09-03

System and method for determining drilling parameters based on hydraulic pressure associated with a directional drilling system

#143
20150247397
2015-09-03

Automating downhole drilling using wellbore profile energy and shape

#144
20150142318
2015-05-21

Wellbore pipe trip guidance and statistical information processing method

#145
20150107899
2015-04-23

Automated control of toolface while slide drilling

#146
20150101864
2015-04-16

Intelligent reamer for rotary/sliding drilling system and method

#147
20140311234
2014-10-23

Controlling formation tester probe extension force

#148
20140262525
2014-09-18

Underreamer for increasing a wellbore diameter

#149
20140262508
2014-09-18

Underreamer for increasing a wellbore diameter

#150
20140144660
2014-05-29

ROCK DRILL

#151
20140041941
2014-02-13

Methods and systems for drilling

#152
20130277112
2013-10-24

Methods and systems for picking up a drill bit

#153
20130277111
2013-10-24

Methods and systems for drilling

#154
20130220701
2013-08-29

Torque control device for a downhole drilling assembly

#155
20130161095
2013-06-27

Method and system for controlling a power source at a rock drilling apparatus and rock drilling apparatus

#156
20130032407
2013-02-07

Methods and systems for drilling

#157
20130032401
2013-02-07

Methods and systems for drilling

#158
20120145455
2012-06-14

Anti-stall tool for downhole drilling assemblies

#159
20120097451
2012-04-26

ELECTRICAL CONTROLLER FOR ANTI-STALL TOOLS FOR DOWNHOLE DRILLING ASSEMBLIES

#160
20120085584
2012-04-12

Control system, rock drill rig and control method

#161
20110147084
2011-06-23

Method and an arrangement for controlling a rock drill

#162
20100133009
2010-06-03

Constant-mode auto-drill with pressure derivative control

#163
20100089644
2010-04-15

Drilling tool and drilling method

#164
20090173540
2009-07-09

Anti-stall tool for downhole drilling assemblies

#165
20090173539
2009-07-09

Spring-operated anti-stall tool

#166
20090095527
2009-04-16

Devices and methods for power control in horizontal directional drilling

#167
20090025947
2009-01-29

Method, arrangement and valve for controlling rock drilling

#168
20070209812
2007-09-13

Method and system for collaring

#169
20060120892
2006-06-08

Hydraulic system for mining equipment and method of adjusting power of rock drill machine

#170
20050056439
2005-03-17

Method and equipment for controlling operation of rock drilling apparatus

#171
18896927
2025-10-14

Method of encoding and decoding downlink instructions based on mud flow rate

#172
15878693
2021-01-05

Autonomous drilling pressure control system

#173
14455628
2015-07-14

Drilling rig with position and velocity measuring tool for standard and directional drilling